1601662328 has 16 divisors (see below), whose sum is σ = 3432133680. Its totient is φ = 686426688.

The previous prime is 1601662313. The next prime is 1601662357. The reversal of 1601662328 is 8232661061.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14300501 + ... + 14300612.

It is an arithmetic number, because the mean of its divisors is an integer number (214508355).

Almost surely, 2^1601662328 is an apocalyptic number.

It is an amenable number.

1601662328 is an abundant number, since it is smaller than the sum of its proper divisors (1830471352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1601662328 is a wasteful number, since it uses less digits than its factorization.

1601662328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28601126 (or 28601122 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1601662328 is about 40020.7737056644. The cubic root of 1601662328 is about 1170.0120114675.

The spelling of 1601662328 in words is "one billion, six hundred one million, six hundred sixty-two thousand, three hundred twenty-eight".